Azurfa ta kasance mafi yawan kayan ƙarfe har zuwa tsakiyar 1930s, lokacin da shine kayan fim na farko da ke nunawa don ingantattun kayan aikin gani, yawanci ana sanyawa a cikin ruwa. An yi amfani da hanyar plating na sinadarai don samar da madubai don amfani da su a cikin gine-gine, kuma a cikin wannan aikace-aikacen an yi amfani da tin mai laushi sosai don tabbatar da cewa fim din na azurfa yana da nasaba da gilashin gilashi, wanda aka kiyaye shi ta hanyar ƙara wani Layer na tagulla. A cikin aikace-aikace na waje, azurfar tana amsawa tare da iskar oxygen a cikin iska kuma ta rasa haske saboda samuwar sulfide na azurfa. Duk da haka, saboda high reflectivity na azurfa film bayan plating da kuma gaskiyar cewa azurfa evaporates sosai sauƙi, shi ne har yanzu amfani a matsayin na kowa abu don gajeren lokaci amfani da aka gyara. Ana kuma amfani da azurfa sau da yawa a cikin abubuwan da ke buƙatar sutura na wucin gadi, kamar faranti na interferometer don bincika lebur. A cikin sashe na gaba, za mu yi hulɗa sosai tare da fina-finai na azurfa tare da sutura masu kariya.
A cikin 1930s, John Strong, majagaba a madubin taurari, ya maye gurbin fina-finan azurfa da aka yi da sinadarai da fina-finan alumini mai rufaffiyar tururi.
Aluminum shine ƙarfe da aka fi amfani dashi don sanya madubai saboda sauƙi na evaporation, ultraviolet mai kyau, bayyane, da infrared reflectivity, da ikon da yake da karfi ga yawancin kayan, ciki har da robobi. Ko da yake wani bakin ciki oxide Layer ko da yaushe yana samuwa a saman saman madubin aluminum nan da nan bayan plating, wanda ke taimakawa wajen hana ci gaba da lalata fuskar madubi, tunanin madubin aluminum har yanzu yana raguwa a hankali yayin amfani. Wannan shi ne saboda a cikin amfani, musamman ma idan madubin aluminum ya cika gaba daya ga aikin waje, ƙura da datti ba makawa suna tattarawa a saman madubi, don haka rage abin da ke nunawa. Ayyukan mafi yawan kayan aikin ba su da tasiri sosai sakamakon raguwar tunani kaɗan. Duk da haka, a cikin waɗancan lokuta inda manufar ita ce tattara matsakaicin adadin makamashin haske, tun da yake yana da wuya a tsaftace madubin aluminum ba tare da lalata fim ɗin fim ba, sassan da aka yi amfani da su suna sake maimaita lokaci-lokaci. Wannan ya shafi manyan na'urorin hangen nesa na tunani. Domin manyan madubai suna da girma sosai kuma suna da nauyi, yawancin madubin na'urar hangen nesa galibi ana sake yin su a kowace shekara tare da na'urar da aka sanya ta musamman a cikin dakin kallo, kuma yawanci ba a jujjuya su a lokacin fitar da ruwa ba, sai dai ana amfani da hanyoyin fitar da ruwa da yawa don tabbatar da daidaiton kaurin fim ɗin. Har yanzu ana amfani da Aluminum a cikin mafi yawan na'urorin hangen nesa a yau, amma wasu sabbin na'urorin hangen nesa suna tururi tare da ƙarin manyan fina-finai na ƙarfe waɗanda suka haɗa da murfin kariya na azurfa.
Zinariya tabbas shine mafi kyawun abu don sanya fina-finai masu haskaka infrared. Tunda hasashewar fina-finan zinare ke raguwa da sauri a yankin da ake gani, a aikace ana amfani da fina-finan zinare ne kawai a tsayin daka sama da 700 nm. Lokacin da aka yi zinari a kan gilashi, yana samar da fim mai laushi wanda ke iya lalacewa. Duk da haka, zinari yana manne da chromium ko nickel-chromium (fim ɗin masu juriya da ke ɗauke da 80% nickel da 20% chromium) fina-finai, don haka chromium ko nickel-chromium galibi ana amfani da shi azaman shimfidar sarari tsakanin fim ɗin zinare da gilashin gilashi.
Rhodium (Rh) da platinum (Pt) reflectivity sun fi sauran karafa da aka ambata a sama, kuma ana amfani da su ne kawai a cikin waɗannan lokuta inda akwai buƙatu na musamman don juriya na lalata. Dukansu fina-finan ƙarfe suna manne da gilashin. Yawancin madubin hakori ana lulluɓe su da rhodium saboda suna fuskantar mummunan yanayi na waje kuma dole ne a shafe su da zafi. Har ila yau, ana amfani da fim ɗin Rhodium a cikin madubin wasu motoci, waɗanda sau da yawa su ne na'urori na gaba da ke waje da mota, kuma suna da saukin kamuwa da yanayi, tsarin tsaftacewa, da kuma ƙarin kulawa yayin yin gyaran tsaftacewa. Abubuwan da suka gabata sun lura cewa amfani da fim ɗin rhodium shine cewa yana ba da kwanciyar hankali fiye da fim ɗin aluminum.
–Wannan labarin ya fito dagainjin shafa injin injinGuangdong Zhenhua
Lokacin aikawa: Satumba-27-2024